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1.
Genome Res ; 19(12): 2324-33, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19767417

RESUMO

Since its start, the Mammalian Gene Collection (MGC) has sought to provide at least one full-protein-coding sequence cDNA clone for every human and mouse gene with a RefSeq transcript, and at least 6200 rat genes. The MGC cloning effort initially relied on random expressed sequence tag screening of cDNA libraries. Here, we summarize our recent progress using directed RT-PCR cloning and DNA synthesis. The MGC now contains clones with the entire protein-coding sequence for 92% of human and 89% of mouse genes with curated RefSeq (NM-accession) transcripts, and for 97% of human and 96% of mouse genes with curated RefSeq transcripts that have one or more PubMed publications, in addition to clones for more than 6300 rat genes. These high-quality MGC clones and their sequences are accessible without restriction to researchers worldwide.


Assuntos
Clonagem Molecular/métodos , Biologia Computacional/métodos , DNA Complementar/genética , Biblioteca Gênica , Genes/genética , Mamíferos/genética , Animais , DNA/biossíntese , Humanos , Camundongos , National Institutes of Health (U.S.) , Ratos , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Estados Unidos
2.
Genome Res ; 19(7): 1316-23, 2009 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-19498102

RESUMO

Effective use of the human and mouse genomes requires reliable identification of genes and their products. Although multiple public resources provide annotation, different methods are used that can result in similar but not identical representation of genes, transcripts, and proteins. The collaborative consensus coding sequence (CCDS) project tracks identical protein annotations on the reference mouse and human genomes with a stable identifier (CCDS ID), and ensures that they are consistently represented on the NCBI, Ensembl, and UCSC Genome Browsers. Importantly, the project coordinates on manually reviewing inconsistent protein annotations between sites, as well as annotations for which new evidence suggests a revision is needed, to progressively converge on a complete protein-coding set for the human and mouse reference genomes, while maintaining a high standard of reliability and biological accuracy. To date, the project has identified 20,159 human and 17,707 mouse consensus coding regions from 17,052 human and 16,893 mouse genes. Three evaluation methods indicate that the entries in the CCDS set are highly likely to represent real proteins, more so than annotations from contributing groups not included in CCDS. The CCDS database thus centralizes the function of identifying well-supported, identically-annotated, protein-coding regions.


Assuntos
Sequência Consenso , Genoma , Fases de Leitura Aberta/genética , Animais , Humanos , Camundongos , Alinhamento de Sequência
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